200x200x24
Manufacturer: Zhengfeng steel
Material: q355b
Specification: 200x200x24
Executive standard: GB / t706-2016 and GB / t1591-2018
CLASSIFICATION:
Manufacturer: Zhengfeng steel
Material: q355b
Specification: 200x200x24
Executive standard: GB / t706-2016 and GB / t1591-2018